Display screen or portion thereof with icon



FIG. 1 is a front view of a first embodiment of a display screen or portion thereof with icon showing our new design; and,

FIG. 2 is a front view of a second embodiment of a display screen or portion thereof with icon showing our new design.

The dot-dash lines in the figure show a display screen or portion thereof and form no part of the claimed design. 

CLAIM We claim the ornamental design for a display screen or portion thereof with icon, as shown and described. 